Trace number 1878990

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerobjCPU timeWall clock time
bsolo 3.1 clOPT34 0.472927 0.4742

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/
MIPLIB/miplib/normalized-mps-v2-20-10-bm23.opb
MD5SUM5c5bb330d1cbd0e2ab066594a5d2a4de
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark34
Best CPU time to get the best result obtained on this benchmark0.05899
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 34
Optimality of the best value was proved YES
Number of variables27
Total number of constraints20
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints20
Minimum length of a constraint18
Maximum length of a constraint26
Number of terms in the objective function 27
Biggest coefficient in the objective function 9
Number of bits for the biggest coefficient in the objective function 4
Sum of the numbers in the objective function 124
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 65
Number of bits of the biggest number in a constraint 7
Biggest sum of numbers in a constraint 182
Number of bits of the biggest sum of numbers8
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data 

0.00/0.00	c bsolo beta version 3.1 - 13/04/2009 : 1630 GMT
0.00/0.00	c Developed by Vasco Manquinho and José Santos IST/UTL - INESC-ID
0.00/0.00	c type "bsolo -h" for help
0.00/0.00	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.00	c Learning Strategy: Clause Learning
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file HOME/instance-1878990-1245133790.opb
0.00/0.00	c File size is 3739 bytes.
0.00/0.00	c Highest Coefficient sum: 182
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0 s
0.00/0.00	c Var: 27 Constr: 20 0/0/20 Lit: 478 Watch. Lit: 169
0.00/0.00	c Obj. Vars: 27 (100 % of total variables)
0.00/0.00	c Pre-processing Time: 0 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0     27       20      478   23      175     956      0 -2147483648 0.00
0.00/0.00	c Initial Lower Bound: 21
0.00/0.00	c Initial Path Cost: 0
0.00/0.02	c      100     27      120     1900   15      422    1052    100  20000 0.01
0.00/0.02	c      252     27      272     3941   14      730    1158    252  19384 0.01
0.00/0.02	o 58
0.00/0.08	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.08	c      444     27      465     6511   14     1142    1010    445  20181 0.02
0.00/0.08	c      545     27      566     7856   13     1327    1112    546   8134 0.07
0.00/0.08	o 41
0.09/0.16	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.16	c      579     27      601     8332   13     1435    1010    581   6732 0.09
0.09/0.16	c      680     27      724     9769   13     1675    1112    704   4533 0.15
0.09/0.16	o 40
0.19/0.23	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.23	c      688     27      733     9913   13     1715    1010    713   4354 0.16
0.19/0.23	c      791     27      856    11502   13     1955    1112    836   3628 0.22
0.19/0.23	o 37
0.19/0.29	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.29	c      804     27      870    11714   13     2001    1010    850   3526 0.23
0.19/0.29	c      908     27      991    13323   13     2242    1112    971   3197 0.28
0.19/0.29	o 34
0.39/0.47	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.39/0.47	c      923     27     1007    13554   13     2284    1010    987   3118 0.30
0.39/0.47	c     1023     27      623     8179   13     1461    1112    603   2873 0.36
0.39/0.47	v -x1 -x2 x3 -x4 x5 -x6 -x7 -x8 x9 -x10 -x11 -x12 -x13 -x14 x15 -x16 x17 -x18 -x19 x20 -x21 x22 -x23 -x24 -x25 -x26 x27 
0.39/0.47	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.39/0.47	c   12     1228    102     1464      913    11387    893   2607 0.47
0.39/0.47	c Objective: 34
0.39/0.47	s OPTIMUM FOUND
0.39/0.47	c Total time: 0.471 s

Verifier Data 

OK	34

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1878990-1245133790/watcher-1878990-1245133790 -o /tmp/evaluation-result-1878990-1245133790/solver-1878990-1245133790 -C 1800 -W 2000 -M 1800 bsolo -l1 -t1800 -m1800 HOME/instance-1878990-1245133790.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 1278
/proc/meminfo: memFree=1925984/2055920 swapFree=4181536/4192956
[pid=1278] ppid=1276 vsize=26316 CPUtime=0
/proc/1278/stat : 1278 (bsolo) R 1276 1278 1160 0 -1 4194304 382 0 0 0 0 0 0 0 18 0 1 0 180979073 26947584 341 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1278/statm: 6579 341 291 640 0 5935 0

[startup+0.007972 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 1278
/proc/meminfo: memFree=1925984/2055920 swapFree=4181536/4192956
[pid=1278] ppid=1276 vsize=18504 CPUtime=0
/proc/1278/stat : 1278 (bsolo) R 1276 1278 1160 0 -1 4194304 384 0 0 0 0 0 0 0 18 0 1 0 180979073 18948096 343 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1278/statm: 4626 343 291 640 0 3982 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 18504

[startup+0.101978 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 1278
/proc/meminfo: memFree=1925984/2055920 swapFree=4181536/4192956
[pid=1278] ppid=1276 vsize=18676 CPUtime=0.09
/proc/1278/stat : 1278 (bsolo) R 1276 1278 1160 0 -1 4194304 2079 0 0 0 9 0 0 0 18 0 1 0 180979073 19124224 387 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1278/statm: 4669 387 292 640 0 4025 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 18676

[startup+0.302 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 1278
/proc/meminfo: memFree=1925984/2055920 swapFree=4181536/4192956
[pid=1278] ppid=1276 vsize=19384 CPUtime=0.29
/proc/1278/stat : 1278 (bsolo) R 1276 1278 1160 0 -1 4194304 5112 0 0 0 28 1 0 0 19 0 1 0 180979073 19849216 492 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1278/statm: 4846 492 292 640 0 4202 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 19384

Solver just ended. Dumping a history of the last processes samples

[startup+0.402011 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 1278
/proc/meminfo: memFree=1925984/2055920 swapFree=4181536/4192956
[pid=1278] ppid=1276 vsize=19384 CPUtime=0.39
/proc/1278/stat : 1278 (bsolo) R 1276 1278 1160 0 -1 4194304 5115 0 0 0 38 1 0 0 20 0 1 0 180979073 19849216 495 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1278/statm: 4846 495 292 640 0 4202 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 19384

Child status: 0
Real time (s): 0.4742
CPU time (s): 0.472927
CPU user time (s): 0.45893
CPU system time (s): 0.013997
CPU usage (%): 99.7315
Max. virtual memory (cumulated for all children) (KiB): 19384

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.45893
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5118
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 1

runsolver used 0.006998 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node19 at 2009-06-16 08:29:50
IDJOB=1878990
IDBENCH=1860
IDSOLVER=700
FILE ID=node19/1878990-1245133790
PBS_JOBID= 9363729
Free space on /tmp= 66160 MiB

SOLVER NAME= bsolo 3.1 cl
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-bm23.opb
COMMAND LINE= bsolo -l1 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1878990-1245133790/watcher-1878990-1245133790 -o /tmp/evaluation-result-1878990-1245133790/solver-1878990-1245133790 -C 1800 -W 2000 -M 1800  bsolo -l1 -t1800 -m1800 HOME/instance-1878990-1245133790.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 5c5bb330d1cbd0e2ab066594a5d2a4de
RANDOM SEED=2138119061

node19.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.234
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.234
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1926400 kB
Buffers:          6504 kB
Cached:          60072 kB
SwapCached:       6048 kB
Active:          58300 kB
Inactive:        16948 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1926400 kB
SwapTotal:     4192956 kB
SwapFree:      4181536 kB
Dirty:            3960 kB
Writeback:           0 kB
Mapped:          13388 kB
Slab:            40176 kB
Committed_AS:   179664 kB
PageTables:       1456 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66156 MiB
End job on node19 at 2009-06-16 08:29:50